Agenda - 04-17-2012 - 6b - Laserfiche WebLink

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DRAFT DRAFT DRAFT 2 g . 1 - New Development 2 (UDO/Zoning 2012-08) 3 February 27, 2012 4 Quarterly Public Hearing 5 Item C.7 6 7 Purpose 8 Modify stormwater development standards to meet the state required Falls Lake and Jordan 9 Lake New Development stormwater rules. 10 11 Background 12 ➢ Both Falls Lake and Jordan Lake considered polluted due to excessive nutrient input 13 ➢ Nutrients include Nitrogen and Phosphorous 14 ➢ Stormwater runoff is one of the major sources 15 ➢ The State designated both lakes/watersheds as Nutrient Sensitive Waters (NSW) 16 ➢ State legislature required new rule making, mandating nutrient reductions entering lakes 17 Jordan Lake Rules became effective...August 11, 2009 18 Falls Lake Rules became effective...January 15, 2011 19 ➢ Both rules require new development to meet nutrient limits in stormwater runoff 20 Significant Changes 21 ➢ Section 6.14.5 22 Applicability 23 Based on land disturbance 24 ➢ Section 6.14.6 25 Review Criteria 26 Includes peak flow, volume control and nutrient requirements 27 ➢ Section 6.14.7 28 Nutrient loading limits 29 • Very restrictive for Falls and UNHA of Jordan 30 Offset payments 31 • A portion of the nutrient load can be offset 32 • Must meet on-site requirements first 33 Implications 34 ➢ For Development: 35 ➢ Longer review time 36 ➢ Increased design and construction cost 37 ➢ More land needed to construct stormwater controls 38 ➢ Individual residential lots may require formal plan, calculations, and controls 39 Implications 40 ➢ For Staff. 41 - More projects requiring review 42 - Increased review time per project 43 - Post-construction inspections and tracking 44 ➢ Currently analyzing staff resource needs 45 46 Recommendation 47 1. Receive the proposed amendments to the Unified Development Ordinance as detailed in 48 the abstract and attachments.